Ignore cutouts in handleSwipePiptoHomeTransition

For auto-enter PiP animation,
PipTransition#handleSwipePipToHomeTransition populates the final surface
control transactions from the animator by setting fraction to end.

With ag/28133983, display cutout insets would be taken into account
mistakenly and causes the content shifted at the end.

Fixing this by empty the cutout information before populating the final
transactions.

Flag: EXEMPT bugfix
Bug: 354206307
Test: Enter PiP from Netflix on different foldables and phones
Change-Id: If57b774ba7c9343f9c45f32069b637302fafcf9f